SIMBAD references

2007MNRAS.379.1658H - Mon. Not. R. Astron. Soc., 379, 1658-1664 (2007/August-3)

Molecular hydrogen emission from discs in the η Chamaeleontis cluster.


Abstract (from CDS):

Discs in the 6 Myr old cluster η Chamaeleontis were searched for emission from hot H2. Around the M3 star ECHA J0843.3-7905, we detect circumstellar gas orbiting at ∼2 au. If the gas is ultraviolet excited, the ro-vibrational line traces a hot gas layer supported by a disc of mass ∼0.03M, similar to the minimum mass solar nebula. Such a gas reservoir at 6 Myr would promote the formation and the inwards migration of gas giant planets.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): circumstellar matter - planetary systems: formation - infrared: stars

Simbad objects: 19

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